TB-067: Holmatro Rescue Tool Flashcards
What powers both units in the Holmatro System?
Air cooled Honda 4 stroke engines
What type of pump do both power units utilize?
Two-stage pump, capable of producing 10,500psi
What PSI do first and second stage produce?
First stage - Near 3000psi
Second stage - up to 10,500psi
How can you identify the unit has changed over to
second stage?
A momentary “stalling” of the movement of the
tool
What will happen if trigger handle is released when the unit stalls to switch to second stage?
It will go back to first stage. The handle must be
held to build up and switch over to second stage
What fluid is used in both units?
22 weight mineral based hydraulic fluid
What color is the mineral hydraulic fluid?
Pale or light yellow
What are the stats for the single power unit?
PPU 15
35lbs
2.5 horsepower
4500rpm
1.3 quarts regular unleaded gasoline
2000 cc usable hydraulic fluid
Single tool operation
What are the stats for the dual power unit?
PPU 30
58lbs
3 horsepower
3600rpm
1.5 quarts regular unleaded gasoline
3000 cc usable hydraulic fluid
Dual pump for simultaneous tool operation
What three models of cutters do we have?
3020 UL 3035NCT 4050NCT
63,400lbs 57,230LBS 208,000lbs
5 1/4” opn 5 5/8” 7 1/8”
27 1/2lbs 33 1/2lbs 37 1/2lbs
What two model rams do we have? (1)
3340
12” retracted to 23”fully extended
49,210lbs 1st stage - 18,210lbs 2nd stage
24lbs
What two model rams do we have? (2)
3350
21” retracted to 50 1/4” fully extended
49,210lbs force 1st stage - 18,210lbs 2nd stage
37lbs
Which parts of the HMS Ram Support are
designed to be used?
Round cross braces, although the hex shaped
braces are equally as strong
How long are the hoses and what colors are they?
32’ in length Orange and Blue
What is the working pressure of the hose?
10,500psi w/ a burst pressure of 42,000psi
How can the hoses and tools become pressurized
requiring the pressure relief device to be used?
When the tools are operated to their fully opened
or closed position and the handle is released
How shall the spreaders be stored?
Close until tips touch, then open 1/4”
How shall the cutters be stored?
Cross tips. If will not fit, open completely then
close slightly
How shall the rams be stored?
Retracted fully, then open 1/4
When shall the Secu-net be taken out of service?
Whenever an air bag deploys into it
For weekly checks, the power units should be ran
for at least how many minutes?
15 min
How tight shall the hinge bolt nut be?
75 foot pounds of torque
When checking the hoses for damage, how long
should the trigger handle be held open or closed?
5-10 seconds
Current LAFD policy is to replace fuel in small
motors every how many days?
30 days
How is hydraulic fluid transferred within supply
hose?
Inner core higher PSI
Outer core lower PSI
